Contact Chemistry Calculators
Use this page to report calculator bugs, unclear units, broken examples, or ideas for pages that would save you time in class or in the lab.
Editorial Contact
Messages sent through this page go to Editor Gail Joyce for calculator issues, clarity improvements, missing references, or suggestions for stronger worked examples.
Messages are reviewed manually. Response time can vary depending on the volume of requests and the level of research needed to check the issue.
Best Reasons To Reach Out
Flag a broken calculator, a confusing input label, a missing unit conversion, or a page that needs a better worked example.
Helpful Details To Include
Send the calculator URL, the numbers you entered, the result you expected, and anything that looked off on the page.
Suggestions Welcome
Feedback about which calculators you use most often helps decide which pages need clearer formulas, examples, or topic coverage first.